FIJI Ring Status

A Dual Ring Fiber Network replaces the older IGS (intergroup switching) cards and module, and expands an Option 81/81C from 5 to 8 network groups, or from 160 to 256 loops. A NTRB33 FIJI card is installed in each Core/Net or Network module.

A ring of NTRC48 fiber optic cable links the FIJI cards for the Network shelf 0's, and another ring links the Network shelf 1's.
The FIJI cards in each 0 and 1 shelf pair are directly connected by a NTRC47 FIJI to FIJI Synch cable (except for Group 0).
With two rings, if there's a fault in one, the other can automatically take over. No calls are lost during the cutover.

Check Ring Status:

Check that the Fiber Rings operate correctly:

LD 39

to load the program

STAT RING 0

to check the status of Ring 0

STAT RING 1

to check the status of Ring 1

If necessary, restore the Rings to Normal State:

RSTR

to restore both Rings to Normal state

Check the status of the FIJI alarms:

STAT ALRM

to query the alarm condition for all FIJI cards in all Network Groups

Commands:

FIJI Ring maintenance is performed in LD 39:

STAT ALRM x y

Query alarm condition for FIJI card in group x, side y

STAT FIJI x y [FULL]

Get status of FIJI card in group x, side y (full: firmware and SONET status)

STAT RING x

Get status of FIJI cards on side x (0 or 1)

DIS FIJI x y

Disables FIJI in group x, side y

DIS RING x

Disables all FIJI cards on side x

ENL FIJI x y [FDL]

Enables FIJI in group x, side y (forced download)

ENL RING x

Enables all FIJI cards on side x

SWRG y

Switch call processing to ring y (0 or 1). No calls are lost during the cutover.